Custom iOS Expo client - Production App

Dear all,

I hope you are well and safe.

I’m creating an iOS App that uses Facebook’s authentication and require access to the user friends list, with that, I need to create a Custom iOS Expo client, as per Expo documentation.

My question is, for my published app, on App Store, will I need the Expo client? If so, do I need to register each and every user device to Expo?

Because currently, my App in Flight Test is facing issues to get Facebook user’s friends list.

Alex F Borba